# STC SA1566WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: American Airlines Inc, United States
- Description: Installation of Sperry SP-50 Mod Block IV Single Channel Autopilot. (727-35)
- Status date: May 8, 1968
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FC0007407C6FFF4385256CC100821373.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1566WE

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727 ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

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